Geoege osteout



(No Model.)

G. OS-TROUT.

ORE STAMPING MACHINE.

No. 328,153. Patented Oct. 13, 1885.

IIIII/lIl/IIIlIl/l/I INVENTOR ATTORNEY N. PETERS. Prmmmhn n mr.Waahmgmn, D. c

UNITED STATES PATENT OFFICE...

GEORGE OSTROUT, OF MONTREAL, QUEBEC, CANADA.

ORE-STAMPING MACHINE.

SPECIFICATION forming part of Letters Patent No. 328,153, dated October13, 1885.

Application filed July 25, 1884. Renewed September 14, 1885. Serial No.177,126. (No model.)

To aZZ whom it may concern:

Be it known that I, GEORGE OSTROUT, a citizen of the Dominion of Canada,residing at Montreal, in the Province of Quebec, Ganada, have inventednew and useful Improvements in Ore-Stamping Machines, of which thefollowing is a specification.

This invention relates to ore-stamping machines which employ a stamphaving both a rectilinear and an axial motion.

The nature of said invention consists, partly, in the combination of thestamp-rod with a sleeve adapted to move endwise thereon, but engagingsaid rod at the ends thereof, a piston carried by said sleeve, acylinder in which said piston travels, a steam-chest for supplying steamto each end of said cylinder, and

devices operated by said sleeve for actuating the slide-valve of saidsteam-chest.

The nature of said invention further consists in the combination, withthe foregoing elements,of springs interposed between the ends of thesleeve and collars on the shaft to lessen the jar of the upward anddownward strokes.

The said invent-ion further consists in the combination of the sleeve,actuated as aforesaid,with a crank pin and shaft operated thereby, saidshaft being connected by a pitman with the slide-valve.

The said invention further consists in a slotted block sliding laterallyin guideways at tached to said sleeve, in combination with the crank-pinturning in said slot and springs interposed between said block and saidpin, for purposes hereinafter set forth.

The said invention finally consists in certain additional details ofconstruction and combination hereinafter particularly set forth andclaimed.

In the accompanying drawings, Figure 1 represents a vertical sectionthrough the machine embodying my invention. Fig. 2 represents a detailvertical section through the upper part thereof at right angles to theplane of Fig. 1. Fig. 3 represents a horizontal section on the line x wof Fig. 1. Fig. 4 represents an enlarged detail view of the block,guides, springs, and cranlopins. Figs. 5 and 6 represent detail views ofthe ratchet-wheel and one of the spring-pressed pawls, the former beinga plan view and the latter an elevation.

A designates the mortar or anvil, which, as

shown, forms the base of my machine, or may be rigidly attached thereto,a die, a, being secured to the recessed upper part of this mortar. Thesaid die receives the strokes of a stamp-head, B, and its shoe B, thestamphead, shoe, and die being surrounded and covered by a casing, O,which is provided at top with a central opening, through which thestamp-stem or stamprod D moves up and down. In the upper part of thiscasing are two feed-openings, b I), through which the feed-spouts Edischarge ore to the interior of said casing, to be acted on by thestamp and die. The lower part of said casing is provided with screens F,through which the comminuted ore passes therefrom to anencirclingtrough, F, and a discharge-spout, f. On the said mortar oranvil as a base four tubes, G, are erected, each of which is providedwith a water-inlet, g. In said tubes slide four smaller tubes, H, whichare fitted watertight at their lower ends and have a strong plate orhead, I, secured to their upper ends. These upper tubes pass through andare braced and guided by a similar plate or head, H,which forms the topor cover of casing C, but is enlarged to allow the attachment of theupper ends of tubes G,which,with said casing, support said head H. Theplate or head I supports the steam-cylinder J, which is verticallyarranged, and also the steam-chest K, which is provided with aslide-valve, K, and with two ports, k k communicating, respectively,with the upper and lower ends of the cylinder. The stamp-rod D extendsup through said plate and cylinder, and so,too, does a longitudinallymovable-sleeve, L, which encircles said rod. At the upper end of saidrod is a fixed-collar, M, and on said rod, below the lower end of saidsleeve, is a fixed ratchetwheel, N. A spiral-spring, m, is interposedbetween the upper end of said sleeve and said collar M, and anotherspiral spring, n, is in like manner interposed between the lower end ofsaid sleeve and said ratchet-wheel. Said sleeve is provided within saidcylinder with a piston, O,which is driven alternately upward anddownward by the steam introduced through ports kk The consequent upwardand downward motions I of sleeve L are communicated to the stamp-rod Dthrough springs in and a, collar M, and ratchet-wheel N. Said springscushion the force of the upward and downward strokes and preventinjurious jarring. To the said sleeve at its upper end are secured twohorizontal bars,P, forming a guideway for a block, Q, to slide thereinlaterally. This block is centrally recessed or slotted,and provided withinternal spring-plates,R,which have semicircular bearing-pieces, r,secured to them. These bearing-pieces receive a crankpin, 8,eccentrically attached to a horizontal valve-operating shaft, S, thatturns in standards T, raised on a plate, I, on cylinder J and connectedto said slide-valve K by a pitman,

"U, which has an eccentric and yoke attachment to said shaft. By theupward and downward motions of the sleeve L rotary motion iscommunicated to this valve-operating shaft S, through the medium of saidblock and crankpin, and this rotary motion is again changed to verticalreciprocatory motion by the eccentrio and yoke aforesaid, andtransmitted to the pitman and slide-valve. The aforesaid parts are soarranged that when the piston reaches its lowest point the lower port,It, is entirely open and the upper port, If, entirely closed.- Steamthen passes under the piston and raises it, the slide-valve rising atthe same time and gradually closing port It and uncovering port it". Thesame ports are used both for live steam and exhaust.

The lateral motion of the block Q in its guideway answers the purpose ofpreventing the crank-pin from binding, and the spring plates R willyield sufficiently to allow the desired transmission of motion to shaftS by enabling the crank-pin to pass dead-centers, even when the pistondoes not fully reach the end of its normal travel upward or downward. Afly-wheel, V, attached to shaft S, equalizes the rotary motion of thelatter.

The rotary motion of the stamp-rod D is caused by the engagement of theratchetwheel N (the teeth N of which are suitably beveled) with awedge-faced pawl, W, pivoted to one of the tubes H. The rotation of thestamp'rod by means of a pawl and ratchet caused to engage by thelongitudinal reciprocation of said rod is not broadly new; but in thisinstance the ratchet-wheel is the same device which serves as the lowerbearing of spring n. The upper end of this spring bears against acollar, X, which is loose on the stamp-rod. This collar receives thefirst impact of the sleeve in its downward stroke. The upper end of thestamp rod D is screwthreaded, and the collar M is correspondinglyscrew-threaded to constitute an adj usting-nut for the upper spring, m.Similar means of adjustment may be used for the lower spring, 1, toregulate the tension thereof.

The stamp-rod D and sleeve Lpass through stuffing boxes Y Z, arranged,respectively, above and below the cylinder, and the head H of the casingand pipes or tubes G is provided with a bushing, Z, erected around thecentral opening of said head. This bushing of course surrounds saidstamp-rod,and is extended far enough upward to serve as a bracetherefor. It is flared at the top, as indicated at z, to allow a certainamount of play and to facilitate the insertion of the rod.

The telescopic arrangement of the pipes G and H make the machinevertically extensible and contractible at pleasure. To raise thesteamcylinder and devices hereinbefore described for operating the slidevalve and stamp -rod, I force water into the tubes G under the tubes H,the latter in consequence being elevated and carrying the aforesaidparts up with them to the desired point. By checking the influx of waterI allow the machine to remain as thus adjusted, and when the water iswithdrawn the upper part of the machine will necessarily descend again,thus reducing it as a whole within smaller compass. This water,introduced as aforesaid, will of course lessen the heat caused bycompression and friction in addition to the dynamic action above stated.

The rotary motion of the stamp-rod is for the purpose of insuring equalaction on the die and thorough comminution of the ore.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination of a stamp-rod with a sleeve sliding freely thereonfor a limited distance and communicating longitudinal motion to saidrod, a piston carried by said sleeve, a steam-cylinder in which saidpiston works, and a slide-valve which admits the steam alternately toeach end of said cylinder, substantially as shown.

2. The combination of a stamp-rod with a sleeve sliding freely thereonfor a limited dis tance, and springs interposed between, which receivethe thrust of said sleeve in either direction and communicate the samemotion to said rod, a piston carried by said sleeve, a steam-cylinder inwhich said piston works, and a slide-valve which admits the steamalternately to each end of said cylinder, substantially as shown.

3. The combination of a stamp-rod with a sleeve sliding thereon for alimited distance, springs which receive the thrust of said sleeve ineither direction and communicate the same motion to said rods, a pistoncarried by said sleeve, a steam-cylinder in which said piston works, aslide-valve which admits the steam alternately to each end of saidcylinder, and

mechanism through which said sleeve operates said slide-valve,substantially as set forth.

4:. The combination of the sleeve, stamprod, piston, cylinder, andslide-valve with horizontal guideways attached to said sleeve, a blockmovable in said guideways, a crankpin having its bearings in said block,a shaft to which said crank-pin is attached, and intermediate mechanismwhereby the rotation IIO of said sh aft operates said slide-valve,subst-an- I receive a supply of water, in combination with tially as setforth.

5. The laterally-movable block and the springs within the same, incombination with the crank-pin turning in bearings attached to saidsprings, the shaft to which said crankpin is attached, the pitnianoperated by said shaft, and the slide-valve, cylinder, piston, sleeve,and stamp-rod, all arranged, constructed, and operating substantially asset forth.

6. The ratchet-wheel N, which serves the double purpose of engaging thepawl for rotating the stamp-rod and receiving the longitudinal thrust ofsleeve L and spring at, in combination with said sleeve, spring, androd, and the operating mechanism, substantially as set forth.

7. In an ore-stamping machine, aset of tubes attached to the basethereof and adapted to the supports of the steam-cylinder and the upperpart of the machine, said supports being arranged telescopically withinsaid tubes from above, so that when water is introduced under pressureinto said tubes the upper part of the machine will be raised, as setforth.

8. A casing for the stamp head and die, in combination with a set ofsurrounding-tubes, a plate which is supported by said tubes and forms ahead for said casing, and the adjustable upper part of the machine,substantially as set forth.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses. I

GEORGE OSTROUT. Witnesses:

FRANCIS R. BROWN, EBENEZER KANLUND.

